New Namek is besieged by an enormous evil entity - the Big Gete Star - a 'living planet' of metal that sustains itself by devouring entire worlds.

Fearing for the existence of his people, Dende, the new guardian of Earth, turns to Goku and his friends for help. The Z-Fighters spring into action in an effort to save the new Namekian home world from this invading menace, but their fight won't be easy! The Big Gete Star has an army of powerful Cyclopean Guards at its disposal, and what's more, at the heart of this metal giant lurks an old enemy... Cooler!